Office



UNITED STATEs PATENT O-EEIcE.

GEORGE XV. STINEBRING, OF SHREVE, OHIO, ASSIGNOR -OF ON E-HALF TOALEXANDER CARL, GEORGE CARL, AND WILLIE H. CARL, OF SAME PLACE.

PAWL AND RATCH ET FOR'SAWMILLS.

- SPECIFICATION forming part of Letters Patent No. 477,710, dated June28, 1892.

- Application filed March 12, 1892.

To all whom it may concern.-

Be it known thatI, GEORGE W. STINEBRING, a citizen of the United States,residing at Shreve, in the county of Wayne and State of Ohio, haveinvented certain new and useful Improvements in Pawls and Ratchets forSawmills; and I do hereby declare that the following is a full, clear,and exact description of the same, reference being had to the annexeddrawings, making a part of this specification, and tothe letters ofreference marked thereon, in which- Figure 1 is aperspective view of asawmill, showing the pawl-and-ratchet arm properly located withreference to the head-block shaft. Fig. 2 is a side view of the pawl andratchet, showing the location of ,the operating leverand handle. Fig. 3is a detached view ofthe top or upper end of the pawl-and-ratchet 1ever,showinglocation of the operating-handle and illustrating the differentpositions of the connecting link and arm.

The present invention has relation to pawl and ratcliets for sawmills;and it consists in the difierent parts and combination of partshereinafter described, and particularly pointed out in the claims.

Similar letters of reference indicate corresponding parts in all thefigures of the drawings.

In the accompanying drawings, A represents the sills, which may belocated upon the axles, or they may be properly secured to a fixed frameor other suitable foundation. The sawmill-frame B may be substantiallyof the form shown in the drawings and is so arranged that the saw-shaft,together with the different attachments, may be properly attached.

0 represents a section of the track, wlnch is fixed to the frame orsills A in any convenient and well-known manner, and for the purpose offorming a track of sufficient length a section may be added or attachedat either end of the section shown in the drawings. Upon the track O aremounted the trucks D, which may be substantially of the form shown inthe drawings and are provided with the grooved wheels at, which travelback and forth upon the rails b. The knee-beds F are $erial No. 424,660.(No model.)

attached to the trucks D in any convenient v and well-known manner andare located'sub stantially as shown in the drawings, and, as shown, theknee bands Fare provided with the ordinary knees G. Upon the' shaft H islocated the ratchet-wheel I, which ratchet: wheel is so attached that itwill rotate the shaft H, as hereinafter described. The lever J ismounted upon the shaft H and is so attached that it can be rocked backand forth independent of the shaft H. To the side of the lever J andadjacent thereto is located the ratchet-wheel I. Upon one side of thelever J is pivotally attached the double pawl K, which is locateddirectly above the ratchetwheel I and is so arranged that the free endsof the double pawl K will engage with the teeth located upon theratchet-Wheel I, said double pawl being adjustable in such a manner thatbut one of the branches of the double pawl K will be engaged with theteeth of the ratchet-wheel at any one time.

To the lever J are attached the springs c and c by means of the posts orpins d, which springs are located substantially as illustrated in Fig. 2and are so arranged that their free ends will normally press upon thetop or upper side of the double pawl K. To the free end of the spring 0is attached the rod L, which rod extends upward and connects with thefree end of the arm L, which arm is socurely attached in any convenientand wellknown manner to the operating-handle M. The operating-handle Mis pivotally attached to the top or upper end of the lever J. For thepurpose of assisting in holding the operating-handle M at an angle tothe leverJ the segment N is provided, which segment is attached to saidlever by means of the clamping-bolt c or its equivalent, and for thepurpose of adjusting said segment N, together with the handle M, theslot f is provided, which slot is located substantially as shown inFigs. 1 and 2. The free end of the segment N is bifurcated for thepurpose of receiving the handle M, which handle rests upon thebifurcated end of the segment N, substantially as shown in the drawings.For the purpose of limiting the movement of the arm L the shoulders gare provided, which shoulders are formed upon the top or upper end ofthe lever J. The springs c and c are so formed that the arm or branch 7tof the yoke K will be normally held in contact with the teeth locatedupon the ratchet-wheel I, thereby holding the double pawl insuch aposition that it will rotate the ratchet-wheel I as the handle is pulledforward, which movement brings with it the top or upper end of the leverJ. When it is desired to rotate the ratchet I by the backward movementof the lever J, the handle M is turned or rotated until it assumes theposition illustrated in the dotted lines of Fig. 3, which movementelevates the freeend of the arm L, carrying with it the connecting-rodL, which movement elevates or disengages the spring 0' from the doublepawl K, after which the spring a forces the arm 72/ of the double pawl Kinto contact with the teeth upon the ratchet-wheel I. For the purpose ofcausing the spring 0 to engage the arm h with the teeth upon theratchetwheel I and at the same time cause the movement of the doublepawl K to carry with it the spring 0 said spring is formed weaker thanthe spring 0'. The spring 0 is formed only of such a strength that itwill automatically oscillate the double pawl K when the spring 0 isdisengaged or brought out of contact with the double pawl K. Thegage-roller O is located substantially as shown and is adjusted by meansof the screw-threaded shaft 0, which screw-threaded shaft is securelylocked at the desired point of adjustment by means of the dog 0 whichdog is pivoted to the top or upper end of the arm P, which arm issecurely attached at the desired point upon the saw-frame. The dog isbrought to bear upon the screw-threaded shaft by means of the set-screwP For the purpose of assisting in holding the segment N at an angle tothe lever j the shoulders g are formed upon the side of the lever J. Forthe purpose of providing a means for throwing or turning the handle Mout of the Way the joint g is formed in said handle.

Having fully described my invention, what I claim as new, and desire tosecure by Letters -Patent, is

1. The combination of the lever J, provided with the shoulders or stopsg, the arm L, fixed to the handle M, the connecting-rod L, the doublepawl K, located above the ratchetwheel I, and the springs c and c,substantially as and for the purpose specified.

2. The combination of the shaft II, having mounted thereon theratchet-wheel I, the opcrating-lever J, provided with the stops g andhaving attached thereto the operating-handle M, the adjustable segmentN, provided with the slot f, the arm L, the connecting-rod L, thesprings c and 0', having different degrees of tension, and the doublepawl K, substantially as and for the purpose specified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

GEORGE W. STINEBRING.

Witnesses:

JoNAs SMITH, W. 13. LONGSDORF.

